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marcelv

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    Netherlands

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  1. one of the clips of your rom socket is broken off, so the rom is not held in place correctly
  2. marcelv

    SE/30 no chime or video (MLB issue)

    Know you already checked the connections in the video interface, but could you check these again?
  3. marcelv

    SE/30: another battery leak victim (in the bag)

    I created the following table to check the connections between the video rom and other components Also checked the address and data lines connectivity to the cpu and copro maybe someone can use this to check their board.
  4. marcelv

    SE/30: another battery leak victim (in the bag)

    Personally I always use tantalum to replace the smd caps
  5. marcelv

    SE/30: another battery leak victim (in the bag)

    The Macintosh HD does show up when booted from floppy emu, am able to open some of the folders but when I open the system folder the mac keeps searching a long time, are there tools to check the disk?
  6. marcelv

    MAC SE/30 with orange colored CRT

    Strange, the yoke coil seems to be from wk13 1990 Is the a coil added to a surplus CRT? whar would shipping to the Netherlands be?
  7. marcelv

    SE/30: another battery leak victim (in the bag)

    Tried to install system 7 on the Macintosh HD, got an error message unable to install. will try with another HD to check if the scsi is ok.
  8. marcelv

    SE/30: another battery leak victim (in the bag)

    progress - replaced the 20 pin connector - put the capacitors on the board and booted from the floppy emu - treated the rust on he chassis - booted using a floppy disk and with the floppy emu the se/30 will not boot from the scsi hd, it starts to boot but after a while the question mark disk comes back, think the scsi drive has bad sectors What is the best tool to fix bad sectors on the scsi drive?
  9. marcelv

    SE/30: another battery leak victim (in the bag)

    removed the 20 pin connector, ordered a new one. there was more corrosion under the connector so best thing to replace it. What do you recommend to seal the CPU holes with?
  10. marcelv

    MAC SE/30 with orange colored CRT

    do you have a type / model number of this crt?
  11. marcelv

    SE/30: another battery leak victim (in the bag)

    - replaced UE8 (and fixed some connections) - replaced UK6 video rom socket - made 2 wire connections from the video rom socket to J13 - burned a 27C64 eprom with the SE30 video rom - cleaned up some more - lubricated the disk drive The SE/30 is working ! so the 68030 is still working even though is has holes from the battery corrosion. to do: - put the capacitors on the logic board - replace the disk drive connector internal, (missing some pins) - replace the external disk drive connector (very corroded) - treat the rust on the chassis - get the hard disk running
  12. marcelv

    Help to recover a classic mac (LB)

    Have you checked the via's underneath the battery holder?
  13. marcelv

    SE/30: another battery leak victim (in the bag)

    i have to replace UE8, has too much corrosion, rest of the muxes seem ok. the rom socket looks ok, with a magnifier I can see some black corrosion, have to figure out how to remove it the rom did have corrosion on the upper half of the connection points , removed the corrosion using a fiber brush and put new solder on
  14. Got another SE/30 with leaking maxwell. This one has a different leak pattern while is was stored in an apple Macintosh bag on its back. you can see the leakage dripping down to the ports on the back side of the board. the video rom lost a number of legs the 68030 has holes from the corrosion have removed the video rom, socket, battery holder and capacitors and cleaned the board
  15. marcelv

    SE/30 - Somasi Mac (after recapping)

    what is your location? you should als consider replacing UE8
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